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פותח על ידי קלירמאש פתרונות בע"מ -
Epidemiology of Botrytis cinerea in sweet basil and implications for disease management
Year:
1999
Source of publication :
Plant Disease
Authors :
אלעד, יגאל
;
.
שהרבני, גלית
;
.
שטיינברג, דני
;
.
Volume :
83
Co-Authors:
Sharabani, G., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel
Shtienberg, D., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel
Elad, Y., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel
Dinoor, A., Dept. Plant Pathol. and Microbiol., Faculty of Agricultural, Hebrew University of Jerusalem, Rehovot 76100, Israel
Facilitators :
From page:
554
To page:
560
(
Total pages:
7
)
Abstract:
Sweet basil (Ocimum basilicum) is a herbaceous annual plant that is highly susceptible to gray mold, caused by Botrytis cinerea. Infections are initiated on the surface of stem wounds that are caused during harvest; the pathogen then progresses on the stem, killing leaves and secondary buds. When the infection reaches the main stem, the entire plant dies. A study of the epidemiology of the disease and of host-pathogen interactions led to the development of rules for effective disease management. The research was conducted in three steps. (i) Natural epidemics in commercial crops were monitored during the 1993 to 1994 and 1994 to 1995 growing seasons. Disease outbreaks were found to coincide with harvests during rainy days, whereas disease intensity did not change much when harvests were completed during rainless days. (ii) Studies under controlled environmental conditions revealed that cut ends of stems were highly susceptible soon after harvest, susceptibility diminished gradually, and stem cuts inoculated 48 h after harvest were rarely diseased. Observations under a scanning electron microscope showed that an opaque layer had appeared over the cut surface and, as the entire wound surface became covered, penetration of the fungus into the tissue was prevented. Based on these findings, it was hypothesized that avoidance of harvesting during rain events and application of one fungicidal spray, soon after harvest, would result in adequate disease suppression. (iii) These hypotheses were tested and corroborated in greenhouses in two experiments, in 1994 to 1995 and 1995 to 1996. Management of basil crops according to these concepts would also lower the risks for contamination of the marketable product with pesticide residues.
Note:
Related Files :
chemical control
Cultural control
Environmental factors
IPM
mycosis
Ocimum basilicum
pathogenesis
Plant Disease
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26469
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:23
Scientific Publication
Epidemiology of Botrytis cinerea in sweet basil and implications for disease management
83
Sharabani, G., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel
Shtienberg, D., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel
Elad, Y., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel
Dinoor, A., Dept. Plant Pathol. and Microbiol., Faculty of Agricultural, Hebrew University of Jerusalem, Rehovot 76100, Israel
Epidemiology of Botrytis cinerea in sweet basil and implications for disease management
Sweet basil (Ocimum basilicum) is a herbaceous annual plant that is highly susceptible to gray mold, caused by Botrytis cinerea. Infections are initiated on the surface of stem wounds that are caused during harvest; the pathogen then progresses on the stem, killing leaves and secondary buds. When the infection reaches the main stem, the entire plant dies. A study of the epidemiology of the disease and of host-pathogen interactions led to the development of rules for effective disease management. The research was conducted in three steps. (i) Natural epidemics in commercial crops were monitored during the 1993 to 1994 and 1994 to 1995 growing seasons. Disease outbreaks were found to coincide with harvests during rainy days, whereas disease intensity did not change much when harvests were completed during rainless days. (ii) Studies under controlled environmental conditions revealed that cut ends of stems were highly susceptible soon after harvest, susceptibility diminished gradually, and stem cuts inoculated 48 h after harvest were rarely diseased. Observations under a scanning electron microscope showed that an opaque layer had appeared over the cut surface and, as the entire wound surface became covered, penetration of the fungus into the tissue was prevented. Based on these findings, it was hypothesized that avoidance of harvesting during rain events and application of one fungicidal spray, soon after harvest, would result in adequate disease suppression. (iii) These hypotheses were tested and corroborated in greenhouses in two experiments, in 1994 to 1995 and 1995 to 1996. Management of basil crops according to these concepts would also lower the risks for contamination of the marketable product with pesticide residues.
Scientific Publication
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